cubit fast-start tutorial 1. introduction

Simulation Modeling Sciences

Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.

Geometry and Mesh Generation Toolkit

CUBIT Fast-Start Tutorial

1. Introduction

Simulation Modeling Sciences

Contact Info.

• Bugs, enhancement requests:– cubit-help@sandia.gov

• Meshing Questions, CUBIT community:– cubit@sandia.gov

• To subscribe, send an email to majordomo@scico.sandia.gov with “subscribe cubit” in the subject

• Cubit announcements– cubit-announce@sandia.gov

• To subscribe, send an email to majordomo@sandia.gov with “subscribe cubit-announce” in the subject

• Website: – http://cubit.sandia.gov

Simulation Modeling Sciences

Important Info.

• Please power off personal electronics!

• Please do not attach personal electronics to SNL owned equipment!

Simulation Modeling Sciences

Platforms

Windows (64 bit)

Linux (64 bit)

Mac OS/X (64 bit)

Downloads https://cubit.sandia.gov/click on DownloadsEnter Password

Sandia CEELinux LAN

Add /projects/cubit to your PATHType cubit at linux prompt.

Password Sandia: Your Kerberos passwordOthers: from Cubit License

Simulation Modeling Sciences

Licensing

Free, Site license in place (Do not share offsite)

Free.Fill out online forms at cubit.sandia.gov/public/licensing.htmlPending approval from SNL licensing,

receive password to CUBIT DownloadsShare with colleagues in same organization

- All subject to license termsDo NOT share outside of company/organization 1 Password = 1 point of Contact

Sandia

Other Government

Others/AcademicSee csimsoft for license termshttp://www.csimsoft.com

Simulation Modeling Sciences

User Interfaces

Command Line Graphical User Interface

•Better Performance•Power Users•Harder to learn/use

•Interactive, Intuitive•More tools available•Easy to learn/use

Simulation Modeling Sciences

CAD Model CUBIT Mesh

Simulation Modeling Sciences

•Meshing Tools•Geometry Creation•Geometry Preparation•Mesh Optimization•Boundary Conditions•Scripting•Automation

CAD Model CUBIT Mesh

Simulation Modeling Sciences

CAD Model CUBIT Mesh•Meshing Tools•Geometry Creation•Geometry Preparation•Mesh Optimization•Boundary Conditions•Scripting•Automation

•ACIS•STEP•IGES•Facets•STL•Exodus II

Simulation Modeling Sciences

•Meshing Tools•Geometry Creation•Geometry Preparation•Mesh Optimization•Boundary Conditions•Scripting•Automation

•ACIS•STEP•IGES•Facets•STL•Exodus II

•Exodus II•Abaqus•IDEAS-Universal•NASTRAN-BDF•Patran•LS-Dyna•Fluent

CAD Model CUBIT Mesh

Simulation Modeling Sciences

Geometry Entities in CUBIT

Mesh Entities, which approximate geometry entities of same dimension

Vertex Curve Surface BodyVolume

Node Edge Face HexHex

CUBIT Meshes Vertices First, Then Curves, Then Surfaces, Then Volumes(Advancing Front Paradigm)

Tri Tet

Entity Types in CUBIT

Simulation Modeling Sciences

Meshing

Mapped Sub-map

Pave Trimesh

Surface Meshing

Simulation Modeling Sciences

Meshing

Mapped

Sweep

Sub-map

Tetmesh

Volume Meshing

Simulation Modeling Sciences

Online Help

CUBIT online help from https://cubit.sandia.gov

Tip of the Day: Lots of valuable nuggets at Cubit startup

User Documentation from the Help Menu (same as online help)

Command Panels: Help on specific command

cubit-help@sandia.gov